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  <div class="section" id="soversion">
<span id="prop_tgt:SOVERSION"></span><h1>SOVERSION<a class="headerlink" href="#soversion" title="Permalink to this headline">¶</a></h1>
<p>What version number is this target.</p>
<p>For shared libraries <span class="target" id="index-0-prop_tgt:VERSION"></span><a class="reference internal" href="VERSION.html#prop_tgt:VERSION" title="VERSION"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">VERSION</span></code></a> and <code class="docutils literal notranslate"><span class="pre">SOVERSION</span></code> can be used to
specify the build version and API version respectively.  When building or
installing appropriate symlinks are created if the platform supports
symlinks and the linker supports so-names.  If only one of both is
specified the missing is assumed to have the same version number.
<code class="docutils literal notranslate"><span class="pre">SOVERSION</span></code> is ignored if <span class="target" id="index-0-prop_tgt:NO_SONAME"></span><a class="reference internal" href="NO_SONAME.html#prop_tgt:NO_SONAME" title="NO_SONAME"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">NO_SONAME</span></code></a> property is set.</p>
<div class="section" id="windows-versions">
<h2>Windows Versions<a class="headerlink" href="#windows-versions" title="Permalink to this headline">¶</a></h2>
<p>For shared libraries and executables on Windows the <span class="target" id="index-1-prop_tgt:VERSION"></span><a class="reference internal" href="VERSION.html#prop_tgt:VERSION" title="VERSION"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">VERSION</span></code></a>
attribute is parsed to extract a <code class="docutils literal notranslate"><span class="pre">&lt;major&gt;.&lt;minor&gt;</span></code> version number.
These numbers are used as the image version of the binary.</p>
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<div class="section" id="mach-o-versions">
<h2>Mach-O Versions<a class="headerlink" href="#mach-o-versions" title="Permalink to this headline">¶</a></h2>
<p>For shared libraries and executables on Mach-O systems (e.g. macOS, iOS),
the <code class="docutils literal notranslate"><span class="pre">SOVERSION</span></code> property corresponds to <em>compatibility version</em> and
<span class="target" id="index-2-prop_tgt:VERSION"></span><a class="reference internal" href="VERSION.html#prop_tgt:VERSION" title="VERSION"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">VERSION</span></code></a> to <em>current version</em>.  See the <span class="target" id="index-0-prop_tgt:FRAMEWORK"></span><a class="reference internal" href="FRAMEWORK.html#prop_tgt:FRAMEWORK" title="FRAMEWORK"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">FRAMEWORK</span></code></a> target
property for an example.  Versions of Mach-O binaries may be checked with the
<code class="docutils literal notranslate"><span class="pre">otool</span> <span class="pre">-L</span> <span class="pre">&lt;binary&gt;</span></code> command.</p>
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